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            <td width="10%" class="headerItem">Current view:</td>
            <td width="35%" class="headerValue"><a href="../../../index.html">top level</a> - <a href="index.html">src/caffe/util</a> - blocking_queue.cpp<span style="font-size: 80%;"> (source / <a href="blocking_queue.cpp.func-sort-c.html">functions</a>)</span></td>
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            <td width="10%" class="headerCovTableHead">Hit</td>
            <td width="10%" class="headerCovTableHead">Total</td>
            <td width="15%" class="headerCovTableHead">Coverage</td>
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            <td class="headerItem">Test:</td>
            <td class="headerValue">code analysis</td>
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            <td class="headerItem">Lines:</td>
            <td class="headerCovTableEntry">17</td>
            <td class="headerCovTableEntry">36</td>
            <td class="headerCovTableEntryLo">47.2 %</td>
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            <td class="headerItem">Date:</td>
            <td class="headerValue">2020-09-11 22:25:26</td>
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            <td class="headerItem">Functions:</td>
            <td class="headerCovTableEntry">7</td>
            <td class="headerCovTableEntry">20</td>
            <td class="headerCovTableEntryLo">35.0 %</td>
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            <td class="headerItem">Legend:</td>
            <td class="headerValueLeg">            Lines:
            <span class="coverLegendCov">hit</span>
            <span class="coverLegendNoCov">not hit</span>
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<pre class="sourceHeading">          Line data    Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum">       1 </span>            : #include &lt;boost/thread.hpp&gt;</a>
<span class="lineNum">       2 </span>            : #include &lt;string&gt;
<span class="lineNum">       3 </span>            : 
<span class="lineNum">       4 </span>            : #include &quot;caffe/layers/base_data_layer.hpp&quot;
<span class="lineNum">       5 </span>            : #include &quot;caffe/parallel.hpp&quot;
<span class="lineNum">       6 </span>            : #include &quot;caffe/util/blocking_queue.hpp&quot;
<span class="lineNum">       7 </span>            : 
<span class="lineNum">       8 </span>            : namespace caffe {
<a name="9"><span class="lineNum">       9 </span>            : </a>
<span class="lineNum">      10 </span>            : template&lt;typename T&gt;
<span class="lineNum">      11 </span><span class="lineCov">          6 : class BlockingQueue&lt;T&gt;::sync {</span>
<span class="lineNum">      12 </span>            :  public:
<span class="lineNum">      13 </span>            :   mutable boost::mutex mutex_;
<span class="lineNum">      14 </span>            :   boost::condition_variable condition_;
<span class="lineNum">      15 </span>            : };
<a name="16"><span class="lineNum">      16 </span>            : </a>
<span class="lineNum">      17 </span>            : template&lt;typename T&gt;
<span class="lineNum">      18 </span><span class="lineCov">          2 : BlockingQueue&lt;T&gt;::BlockingQueue()</span>
<span class="lineNum">      19 </span><span class="lineCov">          2 :     : sync_(new sync()) {</span>
<span class="lineNum">      20 </span><span class="lineCov">          2 : }</span>
<a name="21"><span class="lineNum">      21 </span>            : </a>
<span class="lineNum">      22 </span>            : template&lt;typename T&gt;
<span class="lineNum">      23 </span><span class="lineCov">        206 : void BlockingQueue&lt;T&gt;::push(const T&amp; t) {</span>
<span class="lineNum">      24 </span><span class="lineCov">        206 :   boost::mutex::scoped_lock lock(sync_-&gt;mutex_);</span>
<span class="lineNum">      25 </span>            :   queue_.push(t);
<span class="lineNum">      26 </span><span class="lineCov">        206 :   lock.unlock();</span>
<span class="lineNum">      27 </span><span class="lineCov">        206 :   sync_-&gt;condition_.notify_one();</span>
<span class="lineNum">      28 </span><span class="lineCov">        206 : }</span>
<a name="29"><span class="lineNum">      29 </span>            : </a>
<span class="lineNum">      30 </span>            : template&lt;typename T&gt;
<span class="lineNum">      31 </span><span class="lineNoCov">          0 : bool BlockingQueue&lt;T&gt;::try_pop(T* t) {</span>
<span class="lineNum">      32 </span><span class="lineNoCov">          0 :   boost::mutex::scoped_lock lock(sync_-&gt;mutex_);</span>
<span class="lineNum">      33 </span>            : 
<span class="lineNum">      34 </span><span class="lineNoCov">          0 :   if (queue_.empty()) {</span>
<span class="lineNum">      35 </span>            :     return false;
<span class="lineNum">      36 </span>            :   }
<span class="lineNum">      37 </span>            : 
<span class="lineNum">      38 </span><span class="lineNoCov">          0 :   *t = queue_.front();</span>
<span class="lineNum">      39 </span>            :   queue_.pop();
<span class="lineNum">      40 </span><span class="lineNoCov">          0 :   return true;</span>
<span class="lineNum">      41 </span>            : }
<a name="42"><span class="lineNum">      42 </span>            : </a>
<span class="lineNum">      43 </span>            : template&lt;typename T&gt;
<span class="lineNum">      44 </span><span class="lineCov">        204 : T BlockingQueue&lt;T&gt;::pop(const string&amp; log_on_wait) {</span>
<span class="lineNum">      45 </span><span class="lineCov">        204 :   boost::mutex::scoped_lock lock(sync_-&gt;mutex_);</span>
<span class="lineNum">      46 </span>            : 
<span class="lineNum">      47 </span><span class="lineCov">        303 :   while (queue_.empty()) {</span>
<span class="lineNum">      48 </span><span class="lineCov">        100 :     if (!log_on_wait.empty()) {</span>
<span class="lineNum">      49 </span><span class="lineNoCov">          0 :       LOG_EVERY_N(INFO, 1000)&lt;&lt; log_on_wait;</span>
<span class="lineNum">      50 </span>            :     }
<span class="lineNum">      51 </span><span class="lineCov">        100 :     sync_-&gt;condition_.wait(lock);</span>
<span class="lineNum">      52 </span>            :   }
<span class="lineNum">      53 </span>            : 
<span class="lineNum">      54 </span><span class="lineCov">        203 :   T t = queue_.front();</span>
<span class="lineNum">      55 </span>            :   queue_.pop();
<span class="lineNum">      56 </span><span class="lineCov">        203 :   return t;</span>
<span class="lineNum">      57 </span>            : }
<a name="58"><span class="lineNum">      58 </span>            : </a>
<span class="lineNum">      59 </span>            : template&lt;typename T&gt;
<span class="lineNum">      60 </span><span class="lineNoCov">          0 : bool BlockingQueue&lt;T&gt;::try_peek(T* t) {</span>
<span class="lineNum">      61 </span><span class="lineNoCov">          0 :   boost::mutex::scoped_lock lock(sync_-&gt;mutex_);</span>
<span class="lineNum">      62 </span>            : 
<span class="lineNum">      63 </span><span class="lineNoCov">          0 :   if (queue_.empty()) {</span>
<span class="lineNum">      64 </span>            :     return false;
<span class="lineNum">      65 </span>            :   }
<span class="lineNum">      66 </span>            : 
<span class="lineNum">      67 </span><span class="lineNoCov">          0 :   *t = queue_.front();</span>
<span class="lineNum">      68 </span><span class="lineNoCov">          0 :   return true;</span>
<span class="lineNum">      69 </span>            : }
<a name="70"><span class="lineNum">      70 </span>            : </a>
<span class="lineNum">      71 </span>            : template&lt;typename T&gt;
<span class="lineNum">      72 </span><span class="lineNoCov">          0 : T BlockingQueue&lt;T&gt;::peek() {</span>
<span class="lineNum">      73 </span><span class="lineNoCov">          0 :   boost::mutex::scoped_lock lock(sync_-&gt;mutex_);</span>
<span class="lineNum">      74 </span>            : 
<span class="lineNum">      75 </span><span class="lineNoCov">          0 :   while (queue_.empty()) {</span>
<span class="lineNum">      76 </span><span class="lineNoCov">          0 :     sync_-&gt;condition_.wait(lock);</span>
<span class="lineNum">      77 </span>            :   }
<span class="lineNum">      78 </span>            : 
<span class="lineNum">      79 </span><span class="lineNoCov">          0 :   return queue_.front();</span>
<span class="lineNum">      80 </span>            : }
<a name="81"><span class="lineNum">      81 </span>            : </a>
<span class="lineNum">      82 </span>            : template&lt;typename T&gt;
<span class="lineNum">      83 </span><span class="lineNoCov">          0 : size_t BlockingQueue&lt;T&gt;::size() const {</span>
<span class="lineNum">      84 </span><span class="lineNoCov">          0 :   boost::mutex::scoped_lock lock(sync_-&gt;mutex_);</span>
<span class="lineNum">      85 </span><span class="lineNoCov">          0 :   return queue_.size();</span>
<span class="lineNum">      86 </span>            : }
<span class="lineNum">      87 </span>            : 
<span class="lineNum">      88 </span>            : template class BlockingQueue&lt;Batch&lt;float&gt;*&gt;;
<a name="89"><span class="lineNum">      89 </span>            : template class BlockingQueue&lt;Batch&lt;double&gt;*&gt;;</a>
<span class="lineNum">      90 </span>            : 
<span class="lineNum">      91 </span><span class="lineCov">          3 : }  // namespace caffe</span>
</pre>
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